Measurements of magnetic field fluctuations in TJ-II plasmas with new in-vessel helical arrays of magnetic coils.

This paper describes two new helical arrays of magnetic coils recently installed inside the TJ-II vacuum vessel. Their main objective is the precise measurement of the spatial periodicity of the magnetohydrodynamic perturbations usually found in the TJ-II plasmas. Given the high probability of coil failures due to the harsh plasma environment and in view of the extremely difficult access to the TJ-II vessel interior for maintenance, the coil system has been divided in two quasi-identical helical arrays. Both arrays consist of 32 triaxial sensors measuring orthogonal components of the local magnetic field along an ideal helical path whose trajectory runs close to the plasma edge. A description of the main characteristics of coils and arrays as well as their nominal positioning along an ideal helical path, inside the vessel, is given. A precise experimental determination of the real spatial orientation of the coils is performed by comparing the signals measured in current ramp-up and ramp-down experiments with calculations based on a filamentary model for the TJ-II magnetic coils. After this fine calibration procedure, it is possible to analyze the dependence of the amplitude of the measured magnetic field and its fluctuations as a function of the coil distance to the last closed flux surface. The study of the phase evolution of the parallel and perpendicular oscillatory components is also enabled. Finally, two examples of mode number determination are shown. One corresponds to a low frequency mode appearing in pure electron cyclotron resonance heating plasma, and the other one shows several modes observed during combined injection of both co and counter neutral beams and identified as shear Alfvén waves.

[Motor behavior of human fetuses during the second trimester of gestation: a longitudinal ultrasound study]. / Motricidad fetal durante el segundo trimestre de gestación: estudio ecográfico longitudinal.

INTRODUCTION: The aim of this research is to contribute to knowledge of the normal spontaneous motor behavior of the human fetus during the second trimester of pregnancy. This study focuses on five patterns of spontaneous fetal movement: startle (S), axo-rhizomelic rhythmia (ARR), axial stretching (AS), general movement (GM), and diaphragmatic contraction (DC). METHODS: A cohort of 13 subjects was followed up using 2D obstetrical ultrasound images at 12, 16, 20, and 24 weeks of gestation. As inclusion criteria, neonatal neurological examination and general movements after eutocic delivery at term were normal in all of the subjects, and their neuromotor and cognitive development until the end of pre-school age were also normal. RESULTS: All these five motor patterns are present at the beginning of the 2(nd) gestational trimester, but their quantitative and qualitative traits are diverse according to gestational ages. The phasic, isolated or rhythmically repeated movements, S and ARR, are prominent at 12 and 16 weeks of gestation, and then their presence gradually diminishes. By contrast, tonic and complex AS and GM movements increase their presence and quality at 20 and 24 weeks. RAR constitute a particular periodic motor pattern not described in previous literature. Moreover, the incidence of DC is progressive throughout the trimester, in clusters of 2-6 arrhythmic and irregular beats. Fetal heart rate increases during fetal motor active periods. CONCLUSIONS: All five normal behavioral patterns observed in the ultrasounds reflect the progressive tuning of motor generators in human nervous system during mid-pregnancy.

[Nutritional graph for Argentina's bariatric population]. / Gráfica alimentaria para la población bariátrica Argentina.

INTRODUCTION: A food graph is a guide that helps individuals controlling and improving their feeding quality; it provides recommendations on what should a particular population eat with a correct selection of the nutrients to be consumed. OBJECTIVE: The aim of this publication was to create a food education tool for bariatric surgery patients in the long run of the post-surgical period. METHODS: Graduates in nutrition and physicians specialized in nutrition were invited to participate in workshops at a meeting that took place in 2011. The scientific bases were the First Argentinean Consensus on Nutrition in Bariatric Surgery and the Feeding Guidelines for Normal Argentinean Population. In this way, these guidelines are adapted to the Argentinean population submitted to bariatric surgery, together with the experience of the healthcare professionals. RESULT: This yielded an oval-shaped food graph, an adaptation of the Feeding Guidelines for Normal Argentinean Population, 12 messages or recommendations focused on individuals with bariatric surgery, a recommended menu with a mean energetic value of 1,273 calories per day, 145 g of carbohydrates, 76 g of proteins and 43.2 g of fat; 45.5% of the calories coming from carbohydrates, 24% from proteins, and 30.5% from fat, with 1,160 mg of calcium.

Introducción: Una gráfica alimentaria es una guía que ayuda a los individuos a controlar y a mejorar la calidad de su alimentación; ofrece pautas sobre lo que debe comer una determinada población en términos de alimentos dando un marco para la correcta selección de los nutrientes a consumir. Objetivo: El objetivo de la presente publicación fue crear una herramienta de educación alimentaria destinada a pacientes de cirugía bariátrica para el postoperatorio en el largo plazo. Métodos: Se convocó a participar en mesas de trabajo a licenciados en nutrición y médicos especialistas en nutrición en un congreso realizado en el 2011. Se tomó como base científica el Primer Consenso Argentino de Nutrición en Cirugía Bariátrica y las "Guías alimentarias para la Población Argentina normal". De esta forma se adapta la misma a la población argentina con cirugía bariátrica sumada a la experiencia de los profesionales. Resultado: Como resultado se obtuvo un gráfica alimentaria en forma de óvalo, adaptación de la gráfica de las "Guías alimentarias para la población argentina", 12 mensajes o recomendaciones dirigidas a individuos con CB, una sugerencia de menú que responde a un valor calórico promedio de 1.273 calorías diarias, 145 g de carbohidratos, 76 g de proteínas y 43,2 g de grasas; 45,5% de calorías proveniente de los carbohidratos, 24% de calorías proveniente de las proteínas y 30,5 % de calorías proveniente de las grasas, 1.160 mg de calcio.

[Prognosis of neurodevelopmental disorders from clinically-based criteria: usefulness of the observation of general movements]. / Pronóstico de los trastornos del neurodesarrollo a través de la clínica: movimientos generales.

INTRODUCTION AND DEVELOPMENT: Some of the most known classical forms for neurological examination of neonates and infants are reviewed, and their predictive qualities are discussed. Moreover the Prechtl's method of observation of general movements in preterm and term neonates and young infants up to four months posterm is particularly powerful for prediction of normality or abnormality of the future motor control. CONCLUSION: In general, the clinical approach is the principal tool in developmental neurology, even if it must be complemented by technological examinations, specially neuroimaging.

Ausencia congénita de vagina: himen imperforado; presentación de un caso en Santo Domingo / Congenital vaginal absence: imperforate hymen; case presentation in Santo Domingo

El himen imperforado es una anomalía poco frecuente y más aún con ausencia de vagina. Este caso se trata de una femenina de 28 años, cuyo chequeo ginecológico comenzó desde los 16 años, cuando acudió al médico por presentar amenorrea primaria y dolor en hipogastrico de aparición mensual. Motivada por el matrimonio, la paciente recurre al médico para resolver su problema a la cual se le sometió a diversos estudios por el departamento de ginecología, decidiendo así hacer una recección de himen y contruir una neovagina. Actualmente la paciente refiere relaciones sexuales estable

Unleashing the health care border guards.

A fervent anti-immigrant sentiment is picking up momentum, and it is reflected in state and federal legislative proposals, including those addressing health reform. If these bills become law, including a California initiative, doctors and nurses could be turned into border patrol guards, and as many as one million legal immigrants could be denied non-emergency medical care.